Professional experience with one or more of the following subjects: geolocation, positioning, navigation, and timing (PNT) technologies and architectures, PNT resilience and interference analysis, mathematical modeling, space-related modeling and simulation, mission data processing, signal processing, space threats, resilient systems, algorithm design, or software development. In addition to the above, the minimum requirements for a Senior Member of the Technical Staff (SrMTS): 5 years of relevant educational, professional, and/or technical work experience post bachelor's degree in relevant topic areas (e.g., modeling and simulation, mission analysis, astrodynamics, or space operations.).